Perhaps you should try some spelling variations:
communication injections » communication infectious, communication intentions, communication interactions
injections methods » interactions methods, projection methods
methods diffusion » networks diffusion, methods decision
state spaces » state space
safe spaces » shape spaces, scale spaces, life spaces
use spaces » tuple spaces, phase spaces, gauge spaces

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: communication injections methods diffusion ((((safe spaces) OR (state spaces))) or (use spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication injections methods diffusion ((((safe spaces) OR (state spaces))) OR (use spaces)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication injections methods diffusion ((((safe spaces) OR (state spaces))) or (use spaces))".
• Adding a wildcard symbol may retrieve word variants: communication injections methods diffusion ((((safe spaces) OR (state spaces))) or (use spaces))*.